McAfee pre-installed trial ver. removal

Greetings all.I need advise on removing a pgm .I’m not sure where I locate the little %$#@.The mcafee download mgr. prompt contiues to appear as well as an error prompt indicating that part of the pre-installed is missing.Of course trying to contact McAfee is near impossible;and getting a fix from them;;;well.Appreciate;I am thoroughly enjoying xp and PC in general;however have limited ability in knowledge;but do know there is a process to remove the feature.The PC I upgrade with xp has ME and of course that is where McAfee was installed;and it migrate to my upgrade xp. Thanks Jerry